Dust ring or disk for axle-boxes.



Patented July 22, I902.

GQ MAASS.

DUST RING 0R DISK FOR AXLE BOXES.

(Application filedIMam 12, 1902.)

(No Model.)

Hg. if.

UNITED STATES PATIENT OFFICE.

GOTTFRIED MAASS, OF DUISBURG, GERMANY.

DUST RING OR DISK FOR AXLE-BOXES.

SPECIFICATION formingpart of Letters Patent N 0. 705,263, dated July 22, 1902.

Application filed March 12 1902. Serial No. 97,874. (No model.)

To all whom, it may concern:

Be it known that I, GOTTFRIED MAASS, a subject of the Emperor of Germany, residing at Duisburg, in the Empire of Germany, have invented certain new and useful Improvements in Dust Rings or Disks for Axle-Boxes, of which the following is a specification, reference being had to thefannexed drawings, forming a part thereof, in which- Figures 1 and 2am front elevations of a dust-ring embodying my invention. Fig. 3 is a cross-section according to A B of Fig. 1, and Fig. 4 is a cross-section according to O D of Fig. 2.

Similar letters of reference indicate corresponding parts in all the views.

The object of my invention is to construct a dust ring or disk for axle-boxes of vehiclesin particular of railway-carriagesfor shaft-bearings, and the like which, although being made of rigid material, permits an expansion, and so renders a permanent packing of the axle or shaft possible.

The invention consists in the construction and combination of parts hereinafter de scribed and claimed.

The ring or disk consists of three parts a, b, and c, of which a, is the bottom portion, 1) and a being articulated to the respective ends of the latter. The free ends'of the portions 1) and c overlap each other with their leather plates 9 and h, so that no spaces or intervals will result if these ends are shifted in the direction of the plane of the ring. The ring has an inner cover or lining a, made of felt, leather, or similar flexible material, rigidly connected with the three portions (1 b, and c by pins 19, so forming the flexible joints e and f. The free ends of the portions 1) and c are moved toward each other by a spring m, connected to said portions by the pegs 1c and Z. This spring m attempts to shift the portions b and c in the position shown in Fig. 2, thereby opening the joints between the parts b aand c a.

To prevent the dust entering the axle-box or shaft-bearing provided with the new dustring through the open joints, metal plates or sheets at are provided in slots or apertures of the ends of the part a and the adjacent ends of the portions b and c, which metal plates or sheets n are rigidly fastened to one of the ad jacent ring portions and reach into slots or apertures of the other ring portions. In the drawings said plates or sheets are connected by rivets or pins 0 to the bottom part a of the ring; In case the so-constructed joints eand f will be opened the plates or sheets n give an entirely'dust-proof covering for said slits. It will thereforebe seen that I have produced a dust ring or disk with the essential characteristics and advantages of adust-excluding ring, compressed or closed by an annular spring capable of being manufactured of wood or any similar rigid material.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. In a journal dust-guard, the combination, with a guard-plate formed of sections, of an inner lining-ring of flexible material which bears against the shaft and forms a hinge for the said sections, and a spring for contractingthe said sections and lining-ring uponthe shaft, substantially as set forth.

2. In a journal dust-guard, the combination, with a guard-plate formed of sections, said sections being provided with cover-plates g and h at one joint, of an inner lining-ring of flexible material which bears against the shaft and, forms a hinge for the said sections, and a spring for contracting the said sections and lining-ring upon the shaft; substantially as set forth.

3.' In a journal dust-guard, the combination, with a guard-plate formed of sections, one of the said sections being provided with a projecting j oint-plate 'n which engages with a groove in the next adjacent section, of an inner lining-ring of flexible material which bears against the shaft and forms a hinge for the said sections, and a spring for contracting the said sections and lining-ring upon th shaft, substantially asset forth.

In testimony whereofI afiix-my-signature in presence of two witnesses. 1

GOTTFRIED MAASS.- Witnesses:

HENRY HASPER, WOLDEMAR HAUPT. 

